Canon EF17-40MM F/4L USM 8. Filter Holder, 9. Extension Tubes, ENG-8, (Sold separately), You can attach Extension Tube EF12 II or EF25

8. Filter Holder

There is a gelatin filter holder at the rear of the lens. Cut the gelatin filter to fit within the white frames. Then insert the gelatin filter into the filter holder.

• Only one filter can be used.

•When you use a gelatin filter, ghosting may appear in the image.

9. Extension Tubes

(Sold separately)

You can attach Extension Tube EF12 II or EF25

IIfor magnified shots. The shooting distance and magnification are shown below.

		Camera-to-Subject		Magnification
		Distance (mm)		Magnification
		Distance (mm)
		Near	Far	Near	Far

EF12 II	17mm	155	159	0.83⋅	0.70⋅
EF12 II	40mm	206	271	0.59⋅	0.32⋅
	40mm	206	271	0.59⋅	0.32⋅
EF25 II	17mm		Incompatible
EF25 II	40mm	196	218	1.02⋅	0.70⋅
	40mm	196	218	1.02⋅	0.70⋅

Manual focusing is recommended for accurate focusing.